Inventor · disambiguated record
Tirza Ernst
Also filed as: ERNST TIRZA
4 granted patents·53 citations·filing 1995–2005
76Inventor score
Technology areasG06K
Top patents by PatentIndex Score
4 records- 0177US6532314B1Talking toy scannerLEARNING RESOURCES INC·Filed 2000·Granted Mar 11, 2003·33 cites·5 claims
- 0251USD377949SDigital/analog teaching clockWOLDENBERG RICHARD·Filed 1995·Granted Feb 11, 1997·10 cites·1 claims
- 0348USD531669SEducational deviceLEARNING RESOURCES INC·Filed 2005·Granted Nov 7, 2006·8 cites·1 claims
- 0432USD400813STeaching scaleLEARNING RESOURCES INC·Filed 1997·Granted Nov 10, 1998·2 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →